T6917, PhabricatorApplicationTransactionNoEffectException when saving "blocking tasks" without changing them
Summary: Fixes T6917, swallow exception when saving blocking tasks with no changes
Test Plan: Open task, "Edit Blocking Tasks", save without changing, dialog should close with no exception
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T6917
Differential Revision: https://secure.phabricator.com/D11353